You can protect ur whole pc and even no one can install any software without password
you want that no one can open your computer and no one can change your computer's setting.
you can protect your computer by unwanted guest .so no one can see your hard drive , folder and many other stuff.
not need any folder lock software coz all things in just one software
just download this software from here .
software name : pc security 6.3
Clik me 4 download